Spool construction



Dec; 21 1926.

W. MARSHALL SPOOL CONSTRUCTION Filed Jan. 15, 1926 INVENTOR.

BY rm ATTORNEYS.

Patented Dec. 21, 1926.

ar-i entitie commits, Incl; or I-i'oLvoKn, uznssaoi iusnr'rs, A consonants or MAssAcn'u- SETTS.

SPOOL CONSTRUCTION.

Application filed January 15, 1926.

This invention relates to improvements in spools particularly of-the type adapted for holding or supporting a so-oalled bundle or coil of wire in such a manner that the wire of the coil may be unwound therefrom.

It is common practice for wire manufacturers to market wires of various sizes and kinds in the coils or bundles above referred to, and in order for the user thereof to unwind the wire it is usually placed on a support of some sort or on spools.

Spools for receiving these bundles, with which I am familiar, usually comprise a central barrel having heads or flanges at either end, one or both of which are removable to permit the barrel to be inserted in the coil. These ofier disadvantages .and are objectionable for the reason that the turns of the .wire in the coil are liable, when under tension in being pulled 01f the coil, to fall into the crevice between the removable head and barrel. Also when the head is being secured onto the barrel a turn orcmore of the wire is liable to be squeezed therebetween and subsequently broken when under tension in unwinding. According to one feature of my invention I provide a spool having a barrel and heads arranged to be separated intermediate the adjacent faces of the heads whereby I eliminate thepossibility of injuring the endmost turns of the coil. As a further feature of the invention the interfitting members of the spool are arranged so as to tend to cam the 1 wire outwardly from the abutting parts rather than clamp the same therebetween.

There are many changes that may be made in the form of the invention shown without departing from the scope thereof, the form M shown being merely a disclosure of the invention in the present preferred embodiment thereof.

In the drawings Fig. 1 is a side elevational view of a spool embodying the features of the invention;

Fig. 2 is a side elevational view of the parts in a disassembled relation; and

Fig. 3 is an isometric view at small scale of a bundle or coil of wire. so Referring to the drawings in detail the spool comprises separable portions 1 and 2 each of which includes a barrel 3 and 3 preferably integral with heads or flanges 4 Serial No. 81,521.

and 4- respectively. The barrel 3 has its lnner end shaped in the form of a tapering cone and terminates in a shank 5 that is screw threaded on its outer end as shown.

The inner end of the barrel 3 is chamfered out to fit over the cone shaped end of the barrel 3 and receives the threaded end 5 of said barrel. A nut 6 is provided for screwing onto the barrel 3 and is adapted to clamp the parts together. A noncylindrical projection at the rear of the flange 4 is provided by the means of which this portion of the spool may be embraced or held against turning by any suitable tool. Both barrel portions are provided with a central axial bore 7 for receiving an arbor or the like by. the means of which the spool may be supported for an unwinding operation.

The proportions of the various parts may be as desired, or according to the particular coil that'the spool may be used with. Slots such as 8 and 9 may be provided in the faces of the heads and barrel as shown for receiving the projecting binding wires such as 0 used to bind the bundle or coil of wire C for shipment. In operation a coil C of wire is slipped over thebarrel 3 and the barrel 3 is insertedin the opening of the coil and opening of the barrel 3. The nut 6 is screwed onto the thread of the barrel 3 and bearing on the face of the head l will draw the tapered interfitting portions of the barrels together. The noncylindrical projection of the flange 3 may be held in a vise or the like to prevent a rotative movement of the spool while the nut 6 is being drawn up tightly to clamp the parts together. When the coil is thus held on the spool, the binding wires may be removed and the spool slipped over a mandrel or the like and the wire unwound therefrom at any speed desired.

From the foregoing it will be noted that I have provided a spool of novel construction in which the barrel is separable intermediate the inner faces .of the heads and that there are no abutting faces that are likely to clamp and injure a turn of the coil therebetween.

What I claim is:

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A spool comprising separable members each having a barrel with a head or'flange on its outer end, the mner end of one member being provided with a tapering socket and said head for holding said taper and socket the inner end of the other member being in interengageinent so as to provide a spool tapered to fit Within said socket and a having a barrel separable at a point midway 1 threaded shank extending forwardly of said between its heads.

5 taper that projects through and beyond the In testimony whereof I have affixed my head of the other member and a nut in ensignature.

gagement with said shank bearing against WILLIAM R. MARSHALL. 

